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TY - CONF AU - Schneidmiller, E. AU - Faatz, B. AU - Hartl, I. AU - Schreiber, S. AU - Tischer, M. AU - Vogt, M. AU - Wurth, W. AU - Yurkov, M.V. AU - Zemella, J. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - A Concept for Upgrade of FLASH2 Undulator Line J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - FLASH is the first soft X-ray FEL user facility, routinely providing brilliant photon beams for users since 2005. There are plans to upgrade both existing undulator lines of this facility, FLASH1 and FLASH2. FLASH1 will mainly operate in XUV range in seeding and SASE modes, while FLASH2 will use the standard SASE regime as well as new lasing concepts aiming at production of brilliant photon beams on the fundamental and harmonics down to 1nm. In this paper we present a concept for FLASH2 upgrade, and discuss different advanced options. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1736 EP - 1739 KW - undulator KW - FEL KW - polarization KW - electron KW - operation DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-TUPRB024 UR - http://jacow.org/ipac2019/papers/tuprb024.pdf ER -